Convert CRLF to LF in a folder recursively.

crlf2cr.py

# Convert CRLF to LF in a folder recursively.

import sys, os

if len(sys.argv) < 2:
    raise RuntimeError("No folder specified to convert.")

def iterfiles(basedir):
    for (path, dirs, files) in os.walk(basedir):
        for fn in files:
            yield os.path.join(path, fn)

def trim_cr(line):
    if line[-1] == "\n":
        return line.rstrip("\r\n") + "\n"
    else:
        return line

for fpath in iterfiles(sys.argv[1]):
    print fpath
    with open(fpath) as f:
        txt = "".join(map(trim_cr, f))
    with open(fpath, 'wb') as f: # 'b' for windows stdio
        f.write(txt)